package com.baizhi.wwx.service;

import com.baizhi.wwx.dao.AdminDao;
import com.baizhi.wwx.entity.Admin;
import com.baizhi.wwx.utils.ImageCodeUtil;
import com.baizhi.wwx.utils.Md5Utils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.RequestBody;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
import java.util.concurrent.TimeUnit;

@Service
@Transactional
public class AdminServiceImpl implements AdminService{
    @Autowired
    private AdminDao adminDao;
    @Autowired
    private RedisTemplate redisTemplate;
    @Override
    public void register(Admin admin) {
        String password = admin.getPassword();
        //调用工具类，获取随机盐
        String salt = Md5Utils.getSalt(6);
        //对原始密码加随机盐
        String saltPwd=salt+password+salt;
        //调用工具类 对随机盐后的密码进行md5加密
        String md5Code = Md5Utils.getMd5Code(saltPwd);
        //对传递过来的管理员数据，进行数据加工
        admin.setPassword(md5Code);
        admin.setSalt(salt);
        adminDao.insert(admin);
    }

    @Override
    public Map<String, String> getImageCodes() throws IOException {
        Map<String,String>map=new HashMap<>();
        //调去工具类，获取随机验证码字符
        String code = ImageCodeUtil.getSecurityCode();
        //调用工具类 根据随机码生成图片64形式
        String imgBase64 = ImageCodeUtil.careateImgBase64(code);
        //把base64位图片信息存入map；
        map.put("imgCode",imgBase64);
        //获取uuid
        String uuid = UUID.randomUUID().toString();
        //把uuid存入map
        map.put("token",uuid);
        //往redis中存验证码
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        ValueOperations valueOperations = redisTemplate.opsForValue();
        valueOperations.set("Code_"+uuid,code,1, TimeUnit.MINUTES);
        return map;
    }

    @Override
    public Map<String, String> login(Admin admin, String token) {
        Map<String,String>map=new HashMap<>();
        //从redis中获取服务器上的验证码
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        ValueOperations valueOperations = redisTemplate.opsForValue();
        Object o = valueOperations.get("Code_" + token);
        //检查验证码
        if(o==null){//验证码过期
            map.put("message","验证码过期");
            map.put("state","error");
            return map;
        }
        String serverCode = o.toString();
        if(!admin.getEnCode().equals(serverCode)){
            map.put("message","验证码错误");
            map.put("state","error");
            return map;
        }
        //验证码正确检查账户密码
        Admin user= adminDao.selectOne(admin.getUsername());
        if (user==null){
            map.put("message","用户不存在");
            map.put("state","error");
            return map;
        }else {
            if (user.getStatus()=="0"){
                map.put("message","用户已被冻结");
                map.put("state","error");
                return map;
            }
            //获取输入的密码
            String password = admin.getPassword();
            String salt = user.getSalt();
            //加DB相同的盐
            String md5Code= Md5Utils.getMd5Code(salt + password + salt);
            if(md5Code.equals(user.getPassword())){
                map.put("state","success");
                map.put("message",token);
                valueOperations.set("TOKEN_"+token,user);
                return map;
            }else {
                map.put("state","error");
                map.put("message","密码错误");
                return map;
            }
        }

    }

    @Override
    public Admin getUserInfo(String token) {
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        ValueOperations valueOperations = redisTemplate.opsForValue();
        return (Admin) valueOperations.get("TOKEN_"+token);
    }

    @Override
    public void logout(String token) {
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        redisTemplate.delete("TOKEN_"+token);
    }


}
